1、Key Technical Points for Foliar Fertilization of Water Celery (Oenanthe

Choose fertilizers based on the growth stage, soil conditions, and nutrient requirements of water celery. Recommendation: Use foliar fertilizers containing microelements and amino acids, as these components enhance photosynthesis and stress resistance.

2、Green standardized planting techniques for celery in Hanzhong

After planting, apply urea and phosphorus potassium compound fertilizer, and other micronutrients during the mid to late growth stages. Light was managed through shading and film removal, and timely shallow tillage and weeding are conducted to comprehensively promote robust celery growth.

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ABSTRACT Celery is one of the most widely cultivated vegetables worldwide. Boron (B), zinc (Zn), and copper (Cu) are essential microelements for plant growth with Cu also important in control-ling fungal diseases. But little is known about the combined effects of B, Zn, and Cu fertilizers on celery.

4、Enhancing celery’s growth, production, quality, and

The best results on celery’s vegetative growth, yield, chemical content, and amino acid content were recorded by using the (GLY + TRP) mix at the highest level of 75 mg/l in concentration.

5、Best Fertilizer for Celery: Complete Guide

Nitrogen, phosphorus, and potassium are key for celery’s growth. Nitrogen (N) helps it grow leaves. Phosphorus (P) is good for roots and flowers. Potassium (K) makes the plant strong and fights off diseases. Celery also needs micronutrients like calcium, magnesium, and trace elements.

Foliar nutrition: Potential and challenges under multifaceted

The potential of foliar fertilization in improving crop yield and quality under environmental stresses has been evaluated based on a meta-analysis. Foliar-applied fertilizers showed higher crop plants yield and quality traits by 15–19% and 9–29%, respectively, under different environmental stresses.

Effects of foliar application of nitrogen fertilizer on chlorophyll

This study analyzed the optimal nitrogen concentration to promote the chlorophyll content of celery, and discussed its molecular mechanism combined with the expression of genes related to chlorophyll metabolism in celery.

What Foliar Fertilizers Are Better for Mid

Foliar fertilization can rapidly replenish essential nutrients, enhance plant growth vigor, improve stress resistance, promote flower bud differentiation, and support fruit development.

Effects of Foliar Fertilization: a Review of Current Status and Future

Chelated foliar fertilizers are effective for improving element utilization efficiency, crop yield, and quality. The physicochemical properties, molecular structure, chelating strength, and chelating rate of chelating agents modulate the effects of application of nutrients.

Fertilizing Celery: What, When & How to Apply

Start fertilizing smarter with our tips on timing, nutrient needs, and application methods.

Celery (Apium graveolens), also known as Western celery or Chinese celery, is a common vegetable prized for its crisp stems and leaves. Proper fertilization management during its growth cycle is crucial for improving yield, enhancing quality, and ensuring plant health. Foliar fertilization, a widely used modern agricultural practice, delivers nutrients directly to plant leaves via spraying, allowing for rapid absorption. Below is a detailed guide on the best practices and precautions for applying foliar fertilizers to celery during its mid-to-late growth stages.

I. Selecting Appropriate Foliar Fertilizers

1. Nitrogen Fertilizers

Nitrogen is a foundational element for plant growth, particularly critical for celery. It promotes stem and leaf development, increasing yield and quality. In mid-to-late stages, moderate nitrogen application enhances leaf greenness and stem robustness.

2. Phosphorus Fertilizers

Phosphorus fosters root development, strengthens disease resistance, and promotes stem lignification, improving cold tolerance and lodging resistance.

3. Potassium Fertilizers

Potassium boosts stress resistance (e.g., drought, cold, disease) and supports fruit formation and enlargement, enhancing fruit quality.

4. Micronutrients

Microelements like iron, zinc, copper, and manganese improve photosynthetic efficiency and nutrient synthesis/transport.

II. Application Methods for Foliar Fertilizers

1. Dilution

Dilute fertilizers according to instructions (typically 10–20 mL per liter of water) before use.

2. Timing

Apply in the morning or evening during mid-to-late growth stages. Lower temperatures reduce evaporation and improve absorption.

3. Dosage

Adjust based on plant size, density, and soil fertility. A general dose is 1–2 kg of foliar fertilizer per mu (0.067 hectares).

4. Technique

Ensure even spraying to avoid localized overconcentration. Use a sprayer or manual applicator, but avoid direct contact with leaves to prevent burning.

III. Precautions

1. Avoid Overapplication

Excessive fertilizer can burn leaves and hinder growth. Adhere strictly to recommended dosages.

2. Weather Considerations

High temperatures, drought, or adverse conditions may reduce effectiveness. Check forecasts and choose optimal weather for application.

3. Complementary Fertilization

Combine foliar fertilizers with other nutrients (e.g., phosphorus and potassium) to enhance disease resistance and fruit quality.

4. Monitor Crop Response

Observe plants post-application. Symptoms like yellowing or wilting may indicate overapplication or incompatibility, requiring timely adjustments.

The optimal approach for mid-to-late celery fertilization involves selecting suitable foliar fertilizers, diluting and spraying them correctly, and avoiding common pitfalls. By integrating proper weather timing, complementary nutrients, and close monitoring, growers can maximize celery yield, quality, and economic returns through scientific fertilization practices.